Dump truck



mmm

.ch 23 i923.

P. E. 'BARKER DUMP TRUCK Filed oct. 24.

1921 3 SheessSheet 2 d. 23 i923 f P. E, BARMER DUMP TRUCK Filed oct. 24. 1921 5 sheetsmet NN.. NN hw. Nn S1 NN mw.

RN. www

Patented ct. 23, 1%23. n

einen Pence E. Barman, or cnnvnnaienonro, assitance *ro 'nin van Donn man ineens coiuPaNY, or @manana omo, a conronamon or omo nula? TRUCK.

Application filed October `2li, 1921. Serial No. 509,923.

T0 alo' whom t concern.'

I Be it known that I, Pnnor E. BARKER, a

citizen-tl2 the United States, residing ,at

Cleveland, in the county of v( Juyahoga and u State of Ohio, have invented certain new and useful improvements in Dump Trucks, 4of which the following is a specification.

This invention relates to improvements in hoisting mechanism for dump trucks and 39 thelike.

This application is a companion case ofmy copending application Serial No. 500,621, Y tiled Sept. 14;, 1921. f

The objects ot this invention are toprovide a dump truck in which the hoistin mechanism is so constructed and arrange vthat it Will not cause such an increase in the elevation of the load containing body as to render inconvenient the loading of material into the same; more particularly to provide a housing' in the bottom of the truck body to accommodiate the hoisting mechanism which is supported upon the chassis at a point beneath the truck body; and furthermore to provide such a structure that hoisting mechanism having direct connection with the .truck body can be employed, while at the l same time preclude the necessity of increasing a-ppreciably the ordinary elevation of -thetruck body.

'AOthe-r objects of this 'invention will be apparent from the following description and claims when considered together with the accompanying drawings. y

Fig. l is a side elevation of my improved device; Fig. 2 is a transtierse section on line 22, Fig. 1;v Fig. 3 is end elevati-on of the operating' connections ,gF ig. 4 is a plan View, partly broken away, of the casing which encloses the operating mechanism; "and Fig.l 5 is an elevation., partly broken away, of the hoisting mechanism assembled "as a unit. y

In the general view of .my invention vas illustrated in Fig. 1 the chassis is indicated by reference numeral 1, the body by reference numeral 2, and the swinging vtruck body by the reference numeral, it being under stood that the hoisting; mechanism might be lat . Sie operatedby a suitable connection from the -engine .of the-truck or other source of power. The hoisting mechanism which, asf' illus 'ends thereof.

-trated in Figs. 4 and 5, is assembledfes a unit and applied as such to the chassis o" the truck, is mounted upon the channel bars 4 and 5 which form part of the chassis.' These channel bars may be braced in ahy suit-able manner. The casing, indicated in a general vwayat 12 and which enoloses the operating mechanism! for raising and loweringthe truck body, is afforded support at its forward portion by means of the brace bar 9 which isfsupported upon and aifords a brace yor fthe channel bars. As indicated in Figfi2, y the rear middle portion of the casing 12 is,

provided with a recess 12 in its under face to allow clearance for 'the diii'erential of the drive mechanism of the truck. As above stated, anysuitable source of power may be employed for driving the shaft 1e and in the present case the sprocket 15-is shown as being mounted upon the front end of the shaft 1e for operation by a chain'which in turn1 may be driven from the engine off' the ruc c l 1 Splined upon the shaft 14 isf/the clutch member 16, which is adapted to be slid intoand out ot'clutching engagement with the companion clutch members 17 and 18 which are freely mounted upon the shaft 14. VThe clutch member 17 carries the gear 1,9 'which meshes with the gear "2() fixed upon the shaft 21 extending through the "casingi and which also carries the Worm 22A meshing with the worm gear 23. Pinion gears 23a mounted upon the shaft 24 mesh in tu rn Witlli two gears 25 keyed to sleeves 2T carrying pinions 27 and mounted on shaft 26 upon the opposite These two pinions 2'? mesh with the gears 28 which are fixed upon the aligned'but separate shafts 29. The shafts casing, but it will be'understood that thestructurc. ot the pinions 27, th two shafts 29 and the gears lcarried thereby'as well as the bearing thereforere alike. The purpose' of this particular arrangement ol aligned, separate shafts will appeerlater.

The cover plate 32 is provided for the opeu7 ing through the tope-t the casing ft2 and to permit access to the inside thereof. t-

will be understood that suitable means of mounting the several-gears and shafts within the casing are also provided. Withl the drive connection just now described it will be seen that the shaft 14 will communicate driving motion from itsgear 19 to gear 20, that is when the clutch member 16 is thrown into engagement with the clutch member 17. Through the meshing gears and pinions described, motion will be transmitted to the two aligned shafts29 upon which are ixedly mounted the crank arms 33 which in turn are pivotally connected with the lever arms 34. The arms 34 are mounted at their other ends to turn on a suitable axis 35 miounted in suitable supports provided on the under side of the truck body by means of channel irons 36. As clearly shownin the drawings,

' the lever 34 has an angular form, the upper end portion 34a extending at approximately 90 to the truck body throughout practically all stages of the hoisting and lowering operations.

With this arrangement, operation of the shaft 29 causes a swinging upward movement of the truckbody which is pivotally mounted at 37 in the 4bearingr supports 38 fixed to the top of the channel-bars 4 and 5, at the rear ends thereof. The clutch 16 is I controlled by means of the yoke member 40 carried by the rod 41 which is 'reciprocated back and forth by means of its connection 42 with the operating rod ,43 which in turn has sliding movement through the casing. This clutch control mechanism is actuated' by the operato` from the front end thereof by any suitable lever connection, as for instance indicated at 45. rlhe rod 43 carries a stop member 46 which is adapted to be enf gaged vby the companion trip members 47 carried upon one face of the gear 28. This particular mechanism is for v the purpose oi? vautomatically shifting the clutch member 16 lfrom engagement with either of the companion clutch membersl'? and 18 into neutral position so as to'automatically stop the swinging movement of the truck body when it has reached itsupper or lower limit of movement. rlhe clutch member 16 is shown in Fig. 5 as occupying neutral position.

When'the clutch member 16'is moved into engagement with the clutch member 18, the pinion 50 carried thereby/ is set into operation and transmits its motion to the meshing pinion lfwhich in tumdrives the meshing pinion 52 xed upon the shaft 2l. lt will beunderstood that the additional or intermediate pinion in this particular gear combinetion edects avreversal or the direction of operation of the shaft 21 from that which is obtained when the drive is through the pinionsl@ and 2.0. Thus the engagement of the clutch 'member 16 with the clutch members 17 and 18 will edect driving of the shaft 21 in either one direction or the other. A

From the above it will'be seen that in order to raise-the -truck body the operator will actua'te theI lever 45 in the proper direction to bring the clutch member 16 into engagement with one or the other clutch member, whereupon the shafts 2.9 are set into operation. The crank arms 33 then move about the axis of the shafts 29 and the truck body is raised to the position oi approximately 45 to the horizontal, as inn dicated in dotted lines in Fig. 1, the truck body being pivoted at a point near its rear end. The operator may dis-connect the clutch at any time by means of the lever 45 so as to stop the raising movement of the truck bodyl or he may depend upon the means for automatically throwingA thc clutch member 16 into neutral position to thereby stop the swinging lVhen it is desired to lower the truck body, the clutch member 16 is moved into engage ment with the other companion clutch meinber so as to operate the shafts 29 and cause the lever arms 33 and 34 to foldbelow the movement.

same, as illustrated in Figs. 1 and 2. The operator may at any time throw the clutch into neutral position so as to stop the truck body at any degree of inclination desired or he may depend uponv the automatic means for throwing out the clutch at its lower limit of movement.

The description thus far is substantially the same as that of the invention covered by llt) accommodate the hoisting mechanism which is located directly under' the truck body so thetruck body when in loading .position will not be too high for convenient ioading of material overthe side when the oper is standingr on. the

also atiorded support upon the.,` "wooden sleepers 4* and 5 on bars d and Li. de in 'diceted in Fi-g. 1, the housing formed' in the' underside of the truclr body gradually di-4 minishes in depth toward the front of the 'truck body, although no particular design or housing 1s necessary. I

- From the above it lwill be seen that ll have devised an arrangement wherely it is pec-v sible'to empio l a hoisting mechanism which has direct en vpositive connection with the lili? groundi-' The bottom Jframe of the truck body indicated at 55 vice is afforded increased protection I mechanismand thereb 'invasie I underside of the truck body without reqairin the truck body when in loading position to e to'o high for convenient loading; which such an arrangement' will be fully under.

stoodwhen it is recalled that the top'edge of the truck body must not be higher. than approximately sixty inches from the ground for convenient loa ing of material over the side edge of the truck body. Furthermore, the hoisting mechanism in my improved defrom the elements and a decidedly neat appearance is i'ils'o'pgroduced.l

The truck shown' in the drawings is frequently used for `hauling garbage, a material which always packs down solidly while being hauled over roughpavements, and more than' that quickly freezes lup in winter, as a result of all of which itdscharges from the truck 'body rather than trickling out gradually as occurs with a. load of sand or earth. lVitli. the ar rangements shown in the drawings the housing in the bottom of the truck body is spaced rearwardly .from its front wall, is narrower than the truck body, or in other words, spaced fromI both of its side walls, and moreover has its front portion formed on a gradualfincline. The result is to reduce so far as possible the cubic contents for essary housing .for the truck elevating increase the truck capacity without inter ering with the abile ity of the truck -to readily dump its contents. A mass of garbage in the truck body i readily slides rearwardly over` the inclined 05," ment, and

forward rtion of the housing. Moreover, said housing, being located between the side walls of the truck, acts as a sort of plow and splits or' divides the rearwardly sliding mass of farb so that it moves out more readily t an if the housin extended the full width of the truck, this ing true 'even though the mass may be frozen.

What I claim is: 5

1. In a dump truck, the combination' of a wheeled chassis, fa load n receiving body mounted thereupon for raising and lowering 'movement and means lsupporte-d .upon said frame' and under said body in the'region of the rear wheels for raising and lowering said body, the bottom of said' 'body being formed with a. housing inthe region of the rear wheels for accommodating said raising and4 lowering' means. 2. In a dump truck, the

a load receiving' body mounted for raising and lowering move lever mechanism supported upon when elevated as a solid mass,.

the nec- 1 combination of.

said chassis `and under said body at-a o int approximately midway of the length t ereoi" for raisi. and lowering said body, the bottom -of saidbodybein'gformed with a! housing for accommodatingsaid raising and lowering means. f

3. In a dump truck, the' combination oaf-pa chassis, a load receiving body mounted thereupon for raising and lowering movement, and a hoisting mechanism unit including levers for raising and lowering said body, i

said unit being supported upon said Chamis at a point approximately' midway ofthe' length of said body, and the bottom of said body being formed with a housing for. accommodatingsaid unit.

4. In adump truck, the c0mbinationof, a chassis, a load receiving body mountedthereupon for raising and lowering movement, hoisting mechanism including levers connectedto said bodyand means su' ort/3d upon said chassis for operati sai evers, said mechanism being loca underl said body and at a point substantially midway of the length thereof, and the bottom of said4 body being provided'with a housing foraccormn'odating said mechanism.

5. -In a dump truck, the combination of a chassis, a load receiving body'mounted thereupon for raising and lowering moves nient, hoistin .mechanism for said body 105.

cated under t esame, and a housing inthe bottom of said body and spaced rearwardly from its front wall to accommodate said hoist-ing mechanism.

6. .In a dump truck,.the combination of loa` a. chassis, a loadv receiving body mounted.

thereupon for raising and lowering movie-v inent, hoisting mechanism for saidbody lol cated under the same, and a housing in the bottom of said body and spaced' rearwardly from its front wall to accommodate said.

hoistingmechanism, said housing being narrower t an the body.

7. In a dump truck, the combination of a".

Chamis, a' load receiving -body mounted thereuponl for raising and lowering movef nient, `oistin mechanism Vfor said body located under tie same, and a housing in the bottom of said body and spaced rearwardl from its front wall to accommodate sai forward portion inc1ined.-

-8. In a dump truck, the combination ofa upon for ,raising and lowerin hoisting mechanism for said y located under the same, and a housing inthe bottom i `of said bod and spaced rearwardly from" y its front wa 1 to accommodate said hoisting ii` e f.

hoisting mechanism, said housing having chassis, a load receiving body mounted there-1.120

movement,

ed heieupo/n for raising and lowering movehonsing being spaced rearwardly from the nient, hoisting mechanism snppoed upon front wall of the body -and being narrower said chassis and under said body 1n tho than said body and having its forward por- E@ Aregion of the rear Wheels for raising and tion inclined.

lowering said body, the bottom of saiid In tsstimonyiwherwf I hereby affix my body being provided with a, housing to acsignature. coininodaie said hoisting mechanism, said PERCY EBARKER. 

